19343984

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{839}}^1$

素因数の和:989

約数の個数: 40

約数和(自身を含む): 41247360

約数和(自身を除く): 21903376

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 131, 176, 262, 524, 839, 1048, 1441, 1678, 2096, 2882, 3356, 5764, 6712, 9229, 11528, 13424, 18458, 23056, 36916, 73832, 109909, 147664, 219818, 439636, 879272, 1208999, 1758544, 2417998, 4835996, 9671992, 19343984]

約数ペア:

[(1, 19343984), (2, 9671992), (4, 4835996), (8, 2417998), (11, 1758544), (16, 1208999), (22, 879272), (44, 439636), (88, 219818), (131, 147664), (176, 109909), (262, 73832), (524, 36916), (839, 23056), (1048, 18458), (1441, 13424), (1678, 11528), (2096, 9229), (2882, 6712), (3356, 5764)]